JavascriptvalueOf usage _ basic knowledge

Returns the original value of the specified object. Object. valueOf ()
The object parameter is an inherent JScript object.
Description
The valueOf method definition of each inherent object in JScript is different.

Object	Return Value
Array	Elements of the array are converted into strings separated by commas (,) and connected together. Its operation andArray. toStringAndArray. joinThe method is the same.
Boolean	Boolean value.
Date	The storage time is the number of milliseconds from midnight, January 1, January 1, 1970 in UTC.
Function	Function itself.
Number	Numeric value.
Object	Object. This is the default situation.
String	String value.

Math and Error objects do not have the valueOf method.

Applicable:
Array Object | Boolean Object | Date Object | Function Object | Number Object | String Object